Staple refill



FIG. 1 is a perspective view of the front, top plan and left side of astaple refill showing our new design;

FIG. 2 is a perspective view of the rear, bottom and right side thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom view thereof;

FIG. 7 is a left side view thereof; and,

FIG. 8 is a right side view thereof.

CLAIM The ornamental design for a staple refill, as shown and described.